<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>主管理界面</title>
    <link href="css/index.css" rel="stylesheet">
</head>
<body>
<%--<%
    out.print(session.getId());
        Object o=session.getAttribute("USER_LOGIN");
    if(o==null){
        request.setAttribute("tip","你没有访问的权限！");
        request.getRequestDispatcher("/login.jsp").forward(request,response);
        return;
    }
%>--%>
<%@include file="checkLogin.jsp"%>
<h2>欢迎你:<%=_o%> <a href="logout.jsp">退出</a> </h2>
  <!-- referer-->
  <div id="main">
      <div id="left">
          <ul>
              <li><a href="grade" target="myfrme">年级管理</a> </li>
              <li><a href="subject.do" target="myfrme">课程管理</a> </li>
              <li><a href="subject.do" target="myfrme">课程管理ajax</a> </li>
            <%--  <li><a href="subject.jsp" target="myfrme">课程管理</a> </li>--%>
              <li><a href="students.jsp" target="myfrme">学生管理</a> </li>
              <li><a href="#" target="myfrme">成绩管理</a> </li>
              <li><a href="students.html" target="myfrme">学生管理ajax</a> </li>
          </ul>
      </div>
      <div id="right"  >
          <iframe name="myfrme" src="welcome.jsp" frameborder="0" height="600px" width="100%"></iframe>
      </div>
  </div>
</body>
</html>
